Make FTS gucs PGC_SIGHUP instead of PGC_POSTMASTER.

src/backend/cdb/cdbvars.c

@@ -139,11 +139,6 @@ int			gp_fts_probe_interval = 60;
  */
 int			gp_fts_probe_threadcount = 16;
 
-/*
- * Controls parallel segment transition (failover).
- */
-bool		gp_fts_transition_parallel = true;
-
 /* The number of retries to request a segment state transition. */
 int			gp_fts_transition_retries = 5;
 

src/backend/fts/fts.c

@@ -607,7 +607,6 @@ void FtsLoop()
 
 	prober_sleep:
 		{
-
 			/* check if we need to sleep before starting next iteration */
 			elapsed = time(NULL) - probe_start_time;
 			if (elapsed < gp_fts_probe_interval && !shutdown_requested)

src/backend/utils/misc/guc_gp.c

@@ -1040,16 +1040,6 @@ struct config_bool ConfigureNamesBool_gp[] =
 		false, NULL, NULL
 	},
 
-	{
-		{"gp_fts_transition_parallel", PGC_POSTMASTER, GP_ARRAY_TUNING,
-			gettext_noop("Activate parallel segment transition."),
-			NULL,
-			GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE
-		},
-		&gp_fts_transition_parallel,
-		true, NULL, NULL
-	},
-
 	{
 		{"gp_debug_pgproc", PGC_POSTMASTER, DEVELOPER_OPTIONS,
 			gettext_noop("Print debug info relevant to PGPROC."),
@@ -3483,7 +3473,7 @@ struct config_int ConfigureNamesInt_gp[] =
 	},
 
 	{
-		{"gp_fts_probe_retries", PGC_POSTMASTER, GP_ARRAY_TUNING,
+		{"gp_fts_probe_retries", PGC_SIGHUP, GP_ARRAY_TUNING,
 			gettext_noop("Number of retries for FTS to complete probing a segment."),
 			gettext_noop("Used by the fts-probe process."),
 			GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE
@@ -3493,7 +3483,7 @@ struct config_int ConfigureNamesInt_gp[] =
 	},
 
 	{
-		{"gp_fts_probe_timeout", PGC_USERSET, GP_ARRAY_TUNING,
+		{"gp_fts_probe_timeout", PGC_SIGHUP, GP_ARRAY_TUNING,
 			gettext_noop("Maximum time (in seconds) allowed for FTS to complete probing a segment."),
 			gettext_noop("Used by the fts-probe process."),
 			GUC_UNIT_S
@@ -3503,7 +3493,7 @@ struct config_int ConfigureNamesInt_gp[] =
 	},
 
 	{
-		{"gp_fts_probe_interval", PGC_POSTMASTER, GP_ARRAY_TUNING,
+		{"gp_fts_probe_interval", PGC_SIGHUP, GP_ARRAY_TUNING,
 			gettext_noop("A complete probe of all segments starts each time a timer with this period expires."),
 			gettext_noop("Used by the fts-probe process. "),
 			GUC_UNIT_S

src/include/cdb/cdbvars.h

@@ -347,7 +347,6 @@ extern int	gp_fts_probe_retries; /* GUC var - specifies probe number of retries
 extern int	gp_fts_probe_timeout; /* GUC var - specifies probe timeout for FTS */
 extern int	gp_fts_probe_interval; /* GUC var - specifies polling interval for FTS */
 extern int	gp_fts_probe_threadcount; /* GUC var - specifies number of threads to use for FTS probes */
-extern bool	gp_fts_transition_parallel; /* GUC var - controls parallel segment transition for FTS */
 
 extern int gp_gang_creation_retry_count; /* How many retries ? */
 extern int gp_gang_creation_retry_timer; /* How long between retries */